How big an emergency fund, and how fast can I build it?

An emergency fund covers essential spending if income stops or a big bill arrives. Work out the size that suits you, and how long it takes to build.

Any currency
₹
Rent or EMI, food, bills, insurance, school fees: what must be paid even in a bad month.
months
Three to six months is a common guide; more if income is irregular. 1 to 24.
₹
Money already saved for emergencies.
₹
What you can add each month until the fund is full.
More assumptions 1
% a year
A savings account or deposit you can reach quickly. 0% to 50%.
Emergency fund to aim for
₹2,40,000
2.4 lakh

6 months of essential spending is about ₹2,40,000. Saving ₹15,000 a month, you would reach it in about 13 months.

Building the fund
Already set aside₹50,000
Still to save₹1,90,000
Time to reach it13 months
Target₹2,40,000
A general guide, not advice. Saving at the start of each month, interest at the yearly rate divided by 12. Keep the fund somewhere safe that you can reach quickly.

Fund by month

075,0001.5 lakh2.25 lakh3 lakh02468101213
Emergency fundTarget
MonthFund
1₹65,325
2₹80,727
3₹96,205
4₹1,11,761
5₹1,27,395
6₹1,43,107
7₹1,58,898
8₹1,74,767
9₹1,90,716
10₹2,06,745
11₹2,22,853
12₹2,39,042
13₹2,55,313

Beyond the numbers

The maths shows one side. These are the things only you can weigh.

  • Peace of mindKnowing a few months are covered makes job changes, illness or repairs far less frightening.
  • Less need for costly debtWithout a fund, surprises often go on a credit card or a quick loan at high interest.
  • Room to chooseA fund gives time to find the right next job or treatment instead of taking the first option.
  • Not too muchA very large fund earning little can hold back other goals. Review the size when life changes.
  • Using it, then refilling itThe fund is meant to be used in a real emergency. Afterwards, rebuild it at a steady pace.

How it's calculated

Target = essential monthly spending × months of cover Each month: (fund + saving) × (1 + yearly rate ÷ 12) Time = first month the fund reaches the target

Only essential spending counts: what must be paid even in a hard month. Saving is added at the start of each month and earns interest monthly.

Assumptions

  • The same saving every month and a steady interest rate.
  • No withdrawals while the fund is being built.
  • Essential spending stays the same; review the target once a year.

Worked example

With 40,000 rupees of essential monthly spending and 6 months of cover, the target is 2.4 lakh rupees. With 50,000 rupees already set aside, saving 15,000 rupees a month at 6% reaches it in about 13 months.

Questions

How many months of cover should I keep?

Three to six months is a common guide. People with irregular income, a single income in the family or dependants often keep more.

Where should the fund be kept?

Somewhere safe that can be reached within a day or two, such as a savings account or a deposit that can be broken easily. The aim is safety and access, not high returns.

Should I invest it instead?

Investments can fall exactly when money is needed. Most people keep the emergency fund separate and invest only beyond it.

What counts as essential?

Housing, food, utilities, insurance, loan payments, school fees and medicines. Holidays and shopping can wait in an emergency.

Sources

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